fuel psi question (help)!
06-10-2006, 04:10 PM
#1
0.5 BAR
Thread Starter
Join Date: Jan 2006
Posts: 62
fuel psi question (help)!
i installed my wb 255 fuel pump and now my fuel pressure is 56psi at idle and wot. is that normal?
here is my set up:
t3 turbo
12:1 fmu
xs power ic 24x12x3 3in inlets and outlets
2.5 ic piping
2.5 down pipe and exhaust
drag manifold
xs power wastegate 8.9 spring
b&m fuel press reg.
STOCK injectors
STOCK fuel rail
here is my set up:
t3 turbo
12:1 fmu
xs power ic 24x12x3 3in inlets and outlets
2.5 ic piping
2.5 down pipe and exhaust
drag manifold
xs power wastegate 8.9 spring
b&m fuel press reg.
STOCK injectors
STOCK fuel rail
06-10-2006, 04:54 PM
#3
0.5 BAR
Join Date: Mar 2005
Posts: 101
Re: fuel psi question (help)!
You are using a 255 high pressure pump right? well if so you will need an aftermarket Fuel pressure regulator, the fackory cannot keep up. I have the same pump and i use the aem fpr, works great. B&M Makes a kit to mod your factory FPR to be adjustible. hope this helps
06-10-2006, 05:10 PM
#5
0.5 BAR
Join Date: Mar 2005
Posts: 101
Re: fuel psi question (help)!
i think around 35 to 45 at idle and the fpr disconnected frorm a vacum source. my guess is that you going to have to buy a better fpr. i had the same problem with my factory reg untill i bought a aftermarket one
06-10-2006, 05:19 PM
#6
1.5 BAR
Join Date: Mar 2006
Posts: 835
Re: fuel psi question (help)!
no need to worry about it, when you get tuned the tuner can compensate for the higher fuel pressure. if you dont plan on tuning then the extra pressure is good. stock setting w/out vacuum line hooked up is 31-41psi.
